Coke-extractor.



PATENTED AUG. 234,-1 904.

' W. H. MOGONNBLL'.

COKE EXTRAGTOR.

APPLIGATIQN FILED MAR. 29. 1904.

5 SHEETS--SHEBT 1.

HUMODEL.

SMV

PATENTBD AUG. Z3, 1904.

W. H. MOGONNBLL. COKE EXTRAGTOR.

APPLICATION FILED MAB. 29. 1904.

5 SHEETS-SHEET 2.

N0 MODEL.

INVENTOR No. 768,067. PATENTED AUG. 23, 1904. W. H. MOCONNELL.

COKE EXTRAGTOR.

APPLIOATION FILED 11.53.29. 1904.

N0 MODEL. 5 SHEETS-SHEET 3.

wxTNEssEs; Y INVENTOR wmwfyw 5 By /ziy Altar-nevi',

No. 700,007. l 'PATENTED AUG. 20,1004. W. H. MUGONNBLL.

COKE EXTRAGTOR.

APPLIoA-Txon FILED 10011.20. 1904.

N0 MODEL. 5 SHEETS-SHEET 4.

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'Y UNITED STATESA Patented August 23, 1904. 2

PATENT OFFICE.

WILLIAM H. MCCONNELL, OF COVINGTON, VIRGINIA, ASSIGNOR TO COV- INGTONMACHINE COMPANY, A CORFORATION VIRGINIA.

COKE-EXTRACTOR.

SPECIFICATION forming part of Letters Patent No. 768,067, dated August23, 1904.

. Application. filed March 20, 1904. Serial No. 200,543. (No model.) I

`ing it out of a door on the opposite side of the oven or else bycarrying it out of the door, through which the toolY or shovel isinserted by the withdrawal of the same.

It relates particularly to that class of machinery in which thetoolwhichremoves the coke from the oven is carried upon a carriage moving ona track 1n front of a series of ovens, and which carriage by means ofappropriate mechanism is caused to travel in front of the ovens. and byfurther appropriate mechanism to insert and withdraw the tool and somove it horizontally and vertically that all parts of the oven insuccession will be subjected to its effect.

Heretofore various machines have been invented for producing theabove-indicated objects; but mostof them have been so expensive inworking and so complicated in their respective parts that they have notbeen found in practice satisfactory; and the ultimate objectv of myinvention is to construct a simply automatically operating machinepossessing all of the above-indicated features, which will be simplerand less liable to get out of order.

The invention will be best understood by reference to the accompanyingfive sheets of drawings, forminga part of this specification, in whichFigure 1 vis a plan View of the machine. Fig. 2 is a vertical elevationof the machine as seen from the right-hand side of Fig. 1. Fig. .3 is avertical end view of the machine. Fig. 4 is a vertical cross-section ofthe machine onthe lines 4 4, Fig. 1; and Fig. 5 is averticalcross-section of the machine in the other direction on the lines5 5, Fig. 1. Fig. 6 is a sectional view on the lines 6 6, Fig. 5.

Similar characters refer to similar parts throughout the several views.

In therdrawings, A' represents the bedplate, which is made rectangularin form, as shown in Figs. 1 and 4. This is mounted upon 'four pedestalsT, which in turn arev mounted upon four wheels W on axles C.

S representsthe rails upon which the extractor moves, placed in front ofthe series of furnaces upon the ties X X.

B is the bar or ram of the coke-removing tool, attached to which at oneend isa scoop or shovel E by means of the angle-irons 1 1 and bolted tothe bar B by the bolts 2 2, as

shown in Figs. 1, 3, and 4. The ram B is mounted upon ahorizontally-rotating ramcarriage D, which consists of a solid castingand which is best shown by reference to Figs.

1, 2, and 3. This terminates at either end in two extension-pieces 3 3,Fig. 2, to which are bolted at either end the uprights 4 4, attached bythe bolts 5 5, on which they may be raised and lowered, and thusadjusted. The uprights 4 4 are forked at the base, as shown in Figs. 23, and 5, and in the forks are placed rollers `6 6, two at either end`upon which the ramcarriage rotates upon the upper surface of thebed-plate A, as shown in Figs 2, 3, and 5. The ram B is arranged toslide in the ram-carriage D, between, on aseries of six, verticalrollers 7, which rotate on bearingboxes inserted in the top and bottomplates.A 8 8 of the ram-carriage D, as shown in Figs.

1, 3, 4, and 5. The position of the rollers 7 in the walls of theram-carriage may be shifted from time to time by means of the slidingboxes 9, which are controlledby the screws 10, by moving the boxeslaterally in and out,

thus. adjusting the position ofl the ram in the carriage. The ram issupported underneath at either .end by two horizontal rollers12 l2,

(shown in Fig. 4,) which aresupport'ed in the extension-pieces 3 3,' andis held in place on top by two rollers 11 11, also at either end, placedon top of it.. The front roller 11 is supported upon spring-bearings 14at either end, lheld between a plate 13, extending outward fromthe-extensionpieees 3, of which it is a part, as shown in Figs. 1 and 3,and a plate 15 by the uprights 16, the object of this constructionbeing' to prevent the mechanism from breaking in the event of the scoopE of the ram B hitting any object `which causes it to spring up quickly.The ram-carriage D is provided at its base with the flanged sleeve 19,formed integrally with the bottom plate 8, 4and is arranged to rotate onthe sleeve 18, formed in a solid piece with the bed-plate. The sleeve 18carries also four horizontal webs or arms 20, in which are held tworollers 21 21, similar to the rollers 11, which further serve to supportthe-ram B. On one side of the ram B is formed a tooth-rack, as shown inFigs. 1', 3, and 4, provided with the teeth 22. The mechanism whichdrives the ram B in and vout of the ovens consists of a shaft N, whichcarries at its top a spur-wheel 23, keyed thereto by the key 24, whichengages with the teeth upon the toothrack upon the ram. Shaft N rotatesin a bushing 17, within the bearing 18,'as shown in Fig-15, and issurrounded at its lower end by asleeve 41, which is keyed to it, whichsleeve is provided at its lower end with jaws 42, which are arranged tomesh into the jaws of the clutch 29. Shaft N is solid throughout itslength. The rackpinion 23 and the sleeve 41, which has jaws 42 on itslower end, are keyed to shaft N. The engine-driven'pinion 57 drives thegearwheel `39, which revolves loosely on the sleeve 41. The gear-'wheel39 is provided with interior jaws on the lower part of its hub, whichare always in engagement with corresponding jaws in the clutch 29. Theclutch 29 revolves loosely on the shaft N. Vhen it is desired to drivethe rain B back and forward by means of its rack 22 and pinion 23, theclutch is thrown upward by forked lever 32 engaging pins in the loosering 31 in the clutch 29. Theupper jaws of the clutch 29 engage jaws 42.in thel keyed sleeve 41, and also the interior jaws of the gear-wheel39. The motion of the gear-Wheel 39 is at once transferred to the shaftN ,the pinion 23, and the rack 22, and the ram is driven as desired.

When it becomes necessary to move the machine from one oven to another,the clutch 29 is thrown downward, and its lower jaws engage with jaws onthe worm-collar 28, loosely rotating on the shaft N. As the upper jawsof the clutch 29 are still in engagement with the interior-jaws on thegear-wheel 39, the movement of-that wheel Ais imparted to the worm 27,which turns the worm-wheelv 26, keyed to the shaft C of wheels WV.

1n order to move the ram D in and out of the oven, as well as to movethe extractor from one oven to another, two engines F and F areemployed, placed one above and the other below the bed-plate A, .asshown in Figa-2 and 3. -The piston-rod 50 of the engine F-Aterminatesinl thev cross-head 51, as

shown in Fig. 1, which slides between the parallel ljiearings 52, asshown in Figs. l and 3. The cross-head 51 is attached to aconnecting-rod 53, the other end of which is cecentrically coupled tothe upper of the two disks 54 and 55, Figs. 1, 3, and which areconnected by a shaft 56, as shown in Fig. 5, rotating in suitablebearings in the bed-plate A and carrying a'j'iinion-wheel 57, whichengages with the pinion 39, which continues to rotate while the engineis being operated in a given direction. The lower engine F is conpled inprecisely the same way to the disk on the lower end of the shaft 56 bymeans of the connecting-rod 58, terminating in a crosshead similar tothe cross-head 51 and sliding between the bearings 59, as shown in Fig.3, which bearings are similar to the bearings 52, and the cross-headbeing in turn connected with the piston-rod 6() of the engine F', asshown in Fig. 3. The connecting-rods 53 and 58 are so connected with thedisks 54 and 55 that both engines will rotate the gear-wheel 39 in thesame direction, and hence its movement will depend upon the manner ofthe admission of the impelling medium to the two engines. Thevalve-controlling` gear, which controls the ingress and egress of theimpelling medium to the two engines, is shown in Figs. 1 and 3, andconsists of the valve-rods 61 and 62 sliding in the valve-chests, whichare connected with sliding' cross-heads 63 and 64, sliding in thebearings 65 and 66 on the outside of the bearings 52 and 59,respectively, which are actuated by the conneetingrods 67 and 68, whichare attached to eccentric couplings 69 and 70 on the pin 71 and 72,which attach connecting-rods 53 and 58 to the disks 54 and 55. Any othermechanism for actuating the valves ofthe engines may be employed withoutreference to particular construction, as the saine is no part of theessence of the present invention.

For the purpose of moving the carriage l) upon the table A around thesleeve 18, on which it turns, a screw-lever is provided passing througha suitable bearing74, placed upon the rear end of the carriage l) andsupported by a suitable bearing 75 on a bracket 76 upon the bed-plate,as shown in Figs. 1 and The kouter end` of this rod 73 is provided witha hand-wheel H, by turning which the rod revolves, and the screw-threadon the other end of it rotating in an appropriate thread in a blockpivoted in the bearing 74 causes the carriage D to turn upon the sleeve18.

For the purpose of controlling the admission of impelling medium to theengines F and F/ avalve-chamber 77 is provided, into which thesupply-pipe 78 enters, as shown in Fig. 1. From this chamber, pipe 79and 8O conduct the impelling medium to the two engines, and by means ofthe lever 81 the direction of the impelling medium in the chamber 77 maybe IOO llO

from the gear-wheel-39 to the shaft N, iirst, forthe purpose of movingthe arm B, and, second, ,for the purpose of moving the coke-extractoronthe track by means of a clutch 29,1

the direction of the movement impartedy to the wheel 39. The two iianges30 are formed on the clutch, as shown in Figs. 5 and 7, and in them isplaced a ring 31, which ring is actuated by a forked lever 32 engagingtherewith, as shown. The .clutch can revolve loosely in the ring,`and bylraising .the .lever the ring and the clutch will be moved up and down.Onthe shaft below the clutch, rotatingin bear ing,35,.is a hollow sleeve28, carrying a wormgear 27, whichy is arranged to engage with agear-wheel 26 on the forward axle C of the carriage. a bearing in astrrup composed of two arms `33, attached tothe lower surface of thebedplate A, as shown in Figs. 3 and 4. in which the shaft rotates on thecollar 35. The sleeve 28 runs loose upon the shaft N, and whenthe clutch29 is thrown down the jaws become locked and the movement ofwheel '39 is4imparted to the sleeve 28. The clutch 29 is raised and lowered by.means of the lever 82, as shown in Figs. 1 and 2, and by throwing thelever forward or backward the clutch 29 is alternately caused to engagewith the sleeve 28 or the collar 41.

The method of operation is as follows: When it is desired to move theextractor` from one operation to the other, the lever 82 is drawnrforward, whereupon the clutch 29 engages with .the sleeve 28. The lever81 is then moved, and impelling mediumbeing admitted to the enginescauses the Aextractor to move in the direction desired, whereupon thepinion 39 will begin to rotate. The lever 82 is thrown forward, causingthe clutch 29 to engage with the sleeve 28, thus causing the motion ofthe pinion 39 to be imparted through the clutch to the sleeve 28. Thisin turn will impart, its motion to the gear-wheel 26, which in turn,through the sprocket-wheels 83 83 and chain 84, will impart motion tothe other The worm-gear 28 is supported inv 'shaft N to rotate andimpart its movement to:

the ram B, thereby causing the same to movev in and out of the furnace.By turning the wheel H the angularity of the ram .with re-` .spect tothe extractor may be changed any desired angle to dra'w the coke fromthe jambs of the furnace. I

I claim as my invention-mA l. In a coke-extractor, the'combination of aram-carriage arranged vto rotate on suitable rollers on the bed-plateofthe machine; a suit-` able bearing attached to thebed-plate aroundVwhich the carriage rotates, a driving-shaft passing through and rotatingin said bearing, a ram sliding inthe carriage'actuated by the: rotationof the shaft; suitable vertical guiding-rollers in the carriage forguiding the. horizontal movement of the ram in the carriage; horizontal'rollers at either end of the.

rotated on the bed-plate.

2. In a coke-extractor, the combination of a; ram-carriage arranged torotate on suitable rollers on the bed-plate of the machine; a suitablebearing attached to the-bed-plate around which the carriage rotates, avdriving-shaft passing through and rotatingin said bearing, a ramsliding in the carriage actuated by the. rotation of the shaft; suitable-vertical guiding-rollers in the carriage for gu-iding the horizontalmovement of the ram in the carriage,v horizontal rollers at .either endof the carriage for guiding the vertical movement of the ram, and ashaft carrying a hand-wheel at one end and provided at the other endwith' aw.orm; gear engaging with a corresponding gear in a'. bearing onthe ram-carriage whereby the ramcarriage-and ram are rotated on thebed-plate.

3. In a coke-eXtractor, the combination of av ram-carriage arranged torotate onf suitable rollers on the bed-plate of the machine, a suitablebearing attached to the bed-plate around which the carriage rotates, adriving-shaft. passing through and rotating in saidv bearing, a ramsliding inthe carriage actuated by thel rotation of the shaft; suitable.vertical guid-` ing-rollers placed in adjustable bea-rings in thecarriage; for guiding vthe horizontal n1ovement of the vram in thecarriage; horizontal' -rollers ateither end of the carriage for. guidingthe vertical movement of the ram; and a shaft carrying a hand-wheel at.one end and provided at the other end with a worm-gear 'engaging with acorresponding gearin a^bearing on the ram-carriage whereby the ram-can'riage and ram are rotated on the bed'plate.

4. In a coke-extractor, the combination of a ram-carriage arranged torotate on suitable rollers on thefbed-plate of the machine; a suitablebearing attached to the bed-plate around which the carriagerotates, adriving-shaft; passing through and rotating in said bearing,

a ram sliding in-the carriage actuated by the.'y

rotation of the shaft suitable vertical guiding-rollers in the carriagefor guiding thehorizontal movement of the ram in the carriage;

,horizontal rollers at either end of the carriage for guiding thevertical movement of the ram, the upper forward of which is mounted onSpring-bearings and a shaft carrying a handwheel at one end and providedat the other end with a worm-gear engaging with a corresponding gear ina bearing on the ram-carriage, whereby the ram-carriage and ram arerotated on the bed-plate.

5. In a coke-extractor, the combination of a ram-carriage composed of asolid casting arranged to rotate on suitable rollers on the bedplate ofthe machine; a suitable bearing attached to the bed-plate around whichthe carriage rotates; a ram provided with a toothed rack on one sidesliding on suitable guidingrollers in the carriage; a driving-shaftpassing. through and rotating in said bearing earrying a spur-wheelengaging in the rack, a sleeve rotating with the shaft, provided withsuitable clutch-jaws at its lower end; va constantly-rotating piniondriven from a suitable source of power rotating loosely around thesleeve; a sliding clutch placed on the shaft below the sleeve, androtating with the same, provided on its upper face with jaws arranged toengage withthe clutch-jaws of the sleeve; and devices substantially asdescribed for causing thev clutch-jaws to engage with the sleeve wherebythe motion of the gear-wheel is imparted through the shaft andspur-wheel to the ram.

6. In acoke-extractor, the combination substantially as described, of aram-carriage arranged to rotate on a bearing in the bed-plate of themachine; a ram provided with a toothed rack on one side, sliding onsuitablesupports in the carriage; a driving-shaft carrying a gear-wheelat its upper end, engaging with the toothed rack on the ram; a sleeverotating with the shaft provided with suitable clutch-jaws at`its lowerend; a constantly-rotating pinion driven from a suitable source ofpower, rotating around the sleeve; a second vsleeve prcvided at-itsupper end with clutchjaws and carrying a worm-gear on its outer surface,arranged to rotate loosely on the lower end of the shaft; a slidingclutch surrounding the shaft provided at either end,

-wi'th clutehjaws arranged to engage alternately with the jaws of theupper sleeve and lower sleeve; a gear-wheel on one of the axles of thecarriage arranged to engage with the worm-gear, and devicessubstantially as d escribed foreausing the sliding clutch to engagealternately withthe sleeves whereby the motion yof the rotating pinionis imparted through the shaft to the carriage, or to the ramas maybedesired, by the movement of the controlling devices.

7.- In acoke-extractor, the combination substantially as described, of aram-carriage arranged to rotate on a bearing in the bed-plate of themachine; aA ram provided with a toothed rack on one side', sliding onsuitable supports in the carriage; a driving-shaft carrying a gear-wheelat its upper end, engaging with the toothed rack on the ram; a sleeverotating with the shaft provided with suitable clutch-jaws at its lowerend; a constantly-rotating pinion driven from a suitable source ofpower` rotating around the sleeve; a second sleeve provided at its upperend with clutchjaws and carrying a worm-gear on its outer surfacearranged to rotate loosely on the lower end of the shaft; a slidingclutch surrounding the shaft provided at either end, with clutch-jawsarranged to engage alternately with the jaws of the upper sleeve andlower sleeve; a gear-wheel on one of the axles of the carriage arrangedto engage with the worm-gear, and a lever for causing the sliding clutchto engage alternately with the sleeves whereby the motion of the 'pinionis imparted through the shaft to the carriage or to the ram as may bedesired.

8. In aeoke-extraetor, the combination substantially as described, of aram-carriage arranged to rotate on a bearing in the bed-plate of themachine; a 1am provided with a toothed racl on one side, sliding onsuitable supports in the carriage; a driving-shaft passing through theram-carriage bearing carrying a gear-wheel at its upper end, engagingwith the toothed rack on the ram; a sleeve rotating with the shaftprovided with suitable. clutch-jaws at its lower end; a constantly-1'0-tating pinion driven from a suitable source of power rotating around thesleeve; a second sleeve provided at its upper end with clutchjaws andcarrying a worm-gear on its outer surface arranged to rotate loosely onthe lower end of the shaft; a sliding clutch surrounding the shaftprovided at either end, with clutchjaws arranged to engage alternatelywith the jaws of the upper sleeve and lower sleeve; a gear-wheel on oneof the axles of the carriage arranged to engage with the worm-gear, anda forked lever actuating a ring attached to the clutch for causing thelatter by the reversal of the lever to engage alternately with thesleeves. whereby the motion of the pinion is imparted through the shaftto the carriage or to the ram as may be desired.

9. In a coke-extractor the combination of a. ram-carriage composed of asolid casting arranged to rotate on suitable rollers on the bedplate ofthe machine; a suitable bearing attached to the bed-plate, around whichthe ramcarriage rotates; a ram provided with a toothed rack on one sidesliding on suitable guidingrollers in the carriage, a driving-sha ftpassing through and rotating in said bearing carrying a spur-wheelengaging in the rack; a sleeve rotating with the shaft, provided withsuitable clutchjaws at its lower end; a constant] y- IOO IIO

rotating pinion rotating loosely around the sleeve; a sliding clutch onthe shaft below the sleeve, and rotating with the same, provided n thebed-plate; a suitable pinion attached to and rotating with a suitableshaft rotating in bearings on the bed-plate arranged to rotate with andimpart its motion to the pinion'on the sleeve and connecting-rods socoupled to the pinion-shaft and to the piston-rods of the engine thatboth engines will v rotate the pinion on the driving-shaft in onedirection, and on being reversed rotateit in the reverse direction, andsuitable valves whereby the impelling medium may be admitted to the twoengines at appropriate times, and suitable devices for lcontrolling theadmission of the impelling medium to the engines.

lO. In a coke-extractor the combination of ram-carriage composed ofasolid casting arranged tov rotate on suitable rollers on the bedplateof the machine; a suitable bearing attached to the bed-plate, aroundwhich the rancarriage rotates; a ram provided with a toothed rack on oneside slidingI on suitable guidingrollers in the carriage, adriving-shaft passing through and rotating in said bearing carrying aspur-wheel engaging in vthe rack; a

sleeve rotating with the shaft, provided wi '3h through the shaft andspur-wheel tothe ram;

two engines placed vertically one upon the other on `the bed-plate; asuitable pinion attached to and rotating withv a suitable shaft rotatingin bearings on the bed-plate arranged to rotate with and imp artl itsmotion to the pinion on the sleeve and connecting-rods coupled at anappropriate angle to the pinionshaft at one end and to the piston-rodsof the engines at the other andthat both engines will rotate the pinionon the driving-shaft in one direction, 'and on being reversed rotate itin the reverse direction,l and suitable valves whereby the impellingmedium may be admitte'd to the two engines at appropriate times, andsuitable'devices for controlling the admission ofthe impellingmedium tothe engines. f

v 11. ln a coke-extractorthe combination of a ram-carriage composed of asolid casting arranged to rotate on suitable rollers on the bedplate ofthe machine; a suitable bed-plate attached to the bed-plate around whichthe .car riage rotates; a ram provided with a toothed rack on one sidesliding on suitable guidingrollers-in the carriage, a driving-shaftpassing through and rotating in said bearing carrying a spur-.wheelengaging in the rack; a sleeve rotating with the shaft, provided with'suitable clutch-jaws at its lower end; a constantly-rotating pinionrotating loosely 'around the sleeve; a sliding clutch. on the same,provided on its upper face withjaws arranged to' engage with theclutch-jaws of the sleeve; a second sleeve provided at its upper endwith clutch-jaws,and carrying a wormgear on its outer surface arrangedto rotate loosely on the lower end of the shaft, a-sliding clutchsurrounding the shaft Aprovided at eitherend with clutch-jaws arrangedto engage with theV jaws of the upper and lower sleeves; two engineslplaced vertically` one upon the other on the bed-plate; a suitablepinion attached to and rotating with a suitable shaftrotating inbearingson the bed-platev arranged to rotate with and: im part its motion to thepinion on the sleeve; connecting-rods so coupled to the pinion-shaft andto the piston-rods of the engine that both engines will rotatethe'pinion on the driving-shaft inone direction, and on being reversedrotate it in the reverse direction, suitable valveswhereby the impellingmedium may-be admitted to the two engines Vat appropriate times,suitable devices for controlling the admissionof Vthe impelling mediumto the engines,anddevices substantially as described for causing thesliding' clutch to engage alternatelywith the sleeves whereby the motionof the pinion is'imparted through the shaft to the carriage shaft belowthe sleeve, andY rotating with the IOO .ment of .the controllingdevices. c

12. In a coke-extractor, the combination of a bed-plate carriedupon apair of suitable axles, each terminating in wheels arranged to move on asuitable track; -asprocket-wheel on the'- exterior of each of the axles;a chain'connecting the same whereby the -movement of fone axle isimparted to the other; aram-carria'ge arranged to rotate onsuitable'rollers on the bed-plate; a suitable bearing on the bed-platearound which the ram-carriage turns;l a ram provided with a toot-hedrack on one side sliding on suitable guiding-rollers in the carriage; adriving-shaft passing 'through and rotating in said bearing carrying aspur-wheel engag-` ing in the rack; a sleeve rotating with the shaftprovided with suitable clutch-jaws at its lower end; aco-nstantlyrotating pinion 1 rotating loosely around the sleeve; aslidingclutch on the shaft below the'sleeve and rotatingwith the same,provided on its upper. face with jaws arranged to engage with the clutchof the sleeve; a second sleeve provided at itsupper end with clutch-jawsand carrying a wormbed-plate carried upon a pair of suitable axles,

exterior of each of the axles; a chain connectgear on its outer surfacearranged to rotate '1 loosely on the lower end of the shaft; a gearwheel on one of the axles whereby the motion of the Worm-gear isimparted to the axle and thence to the extractor; a sliding' clutchsurrounding the shaft, provided at either end with clutch-jaws arrangedto engage the jaws of the upper and lower sleeves` and devicessubstantially as described for causing the clutch to engage alternatelywith the sleeves, whereby the motion of the constantly-rotating pinionis imparted either through thev shaft'to the carriage and is caused tomove over the track, or to the ram and it is caused to move in and outof the eolie-oven as may be desired. y

13. In a coke-extractor, the combination of a each terminating in wheelsarranged to move on a suitable track; a sprocket-wheel on the ing thesame whereby the movement of one l axle is imparted to the other; aram-carriage arranged to rotate on suitable rollers on the bed-plate; asuitable bearing on the bedplate around which the ram-carriage turns; aram provided with a toothed rack on one side sliding on suitableguiding-rollers in the carriage; a driving-shaft passing through androtating in said bearing carrying a spurwheel engaging in the rack;asleeve rotating with the shaft provided with suitable clutchjaws atitslower end; a constantly-rotating pinion rotating loosely around thesleeve; a sliding clutch on the shaft below the sleeve and rotating withthe same, provided on its upper face With jaws arranged to engage withthe clutch of the sleeve; a second sleeve provided at its upper end withclutch-jaars and y carrying a worm-gear on its outer surface arranged torotate loosely on the lower end otl the shaft; a gear-wheel on one ofthe axles whereby the motion of the worm-gear is imparted to the axleand thence to the extractor; a. sliding clutch surrounding the shalt,provided at either end with clutch-jaws arranged to engage the jaws oithe upper and lower sleeves, a driving-pinion mounted upon a suitableshaft engaging with the pinion rotating on the sleeve', two enginesplaced vertically above one another and connecting-rods so coupled tothe pinion-shaft and to the pistoir rods of the engines, that bothengines will rotate the pinion on the driving-shaft in one direction,and on being reversed rotate it in the reverse direction, and suitablevalves whereby the impelling medium may be admitted to the two enginesat appropriatetimes, and suitable devices for controlling` the admissionof the impelling medium to the engine, and devices substantially asdescribed for causing the clutch to engage alternatel \v with thesleeves, whereby the motion oi the constantly-rotating pinion isimparted either through the shaft to the carriage and is caused to moveover the track, or to the ram and it is caused to move in and out oi:the coke-oven as may be desired. y y

In testimony that I claim the foregoing as my invention 1 have signed myname, in pres ence of two witnesses, this 28th day ot l\1lareh, 1904.

TILLIAM H. MCUONNELL. fitnessesz SANFORD RoINsoN, W ILLARD PARKERBUTLER.

